Season 1

47 episodes

1970

Season 2

46 episodes

1981

Season 3

43 episodes

1982

Season 4

35 episodes

1983

Season 5

43 episodes

Season 6

39 episodes

Season 7

39 episodes

Season 8

47 episodes

1987

Season 9

38 episodes

Season 10

40 episodes

Season 11

29 episodes

Season 12

38 episodes

Season 13

39 episodes

Season 14

45 episodes

Season 15

43 episodes

Season 16

30 episodes